Where do you go to learn how to make ice cream?

If,
29 - 1 = 30
9 - 1 = 10
14 - 1 = 15

Based on similar logic, Can you prove that the below algebraic equation is true?
11 - 1 = 10 ?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

What breaks yet never falls, and what falls yet never breaks?

The owner of a popular clothing store comes up with his own method of pricing items. A vest costs $8, socks cost $10, a tie costs $6, and a blouse costs $12. Using the owner’s method, how much would a pair of underwear cost?

What does this rebus mean?

O
N
C
E
TIME

What is the unique property of the following words ?
* Revive
* Banana
* Grammar
* Voodoo
* Assess
* Potato
* Dresser
* Uneven

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

Can you find out who is the kidnapper in below Picture and why, Explain ?

Find the mistake in the below maths equations

A = 2
A(A-1) = 2(A-1)
A2-A = 2A-2
A2-2A = A-2
A(A-2) = A-2
A = 1